Plant cells do not divided their cytoplasm by forming a furrow in cell membrane like animal cells rather they divide by cell plate because

1. Plant cell do not have centrioles
2. Cell wall formation beings with formation of cell plate
3. Cell plate represents middle lamella between the walls of two adjacent cells
4. Plant cells are enclosed by a relatively inextensible wall

Subtopic:  Cell Division: Mitosis (Cytokinesis) |
 55%
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Metaphase I is different from mitotic metaphase as in the later case

1. Two metaphasic plates are formed
2. Tetrads are arranged at the equator
3. Single metaphasic plate is formed
4. Homologous chromosomes get separated from each other
Subtopic:  Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis I |
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Given below are two statements : One is labeled as Assertion (A) and the other is labeled as Reason (R) 

Assertion (A):  The growth of the multicellular organism is due to mitosis 
Reason (R):  Mitosis is also called as equational division and it offers genetic stability 

 
In light of the above statements choose the correct answer from the options given below: 

1. (A) is True but (R) is False.
2. (A) is False but (R) is True.
3. Both (A) and (R) are True and (R) is the correct explanation of (A).
4. Both (A) and (R) are True but (R) is not the correct explanation of (A).
Subtopic:  Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
From NCERT
NEET - 2022
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Select the correct sequence of events occurring during prophase-I of meiosis-I 

(a) Nuclear envelope breakdown 
(b) Synaptonemal complex formation 
(c) Compaction of chromosomes
(d) Terminalisation of chiasmata 
(e) Crossing over 

Choose the most appropriate answer from the options given below: 

1. (c) → (b)  → (e)  → (d)  → (a) 
2. (c) → (a)  → (b)  → (d)  → (e) 
3. (b) → (c)  → (a)  → (d)  → (e) 
4. (c) → (a)  → (b)  → (e)  → (d) 
Subtopic:  Cell Cycle: Meiosis I |
 65%
From NCERT
NEET - 2022
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The onion root tip cell has 16 chromosomes (2n). What would be the number of chromosomes in this cell after the S phase and at the end of mitotic anaphase, respectively?
1. 16 and 16 2. 16 and 32
3. 8 and 16 4. 16 and 8
Subtopic:  Intro to Cell Cycle & Interphase |
 56%
From NCERT
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Given below are two statements: 
Assertion (A): Meiosis does not occur in haploids cells.
Reason (R): Haploid cells do not form gametes.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Intro to Cell Cycle & Interphase | Cell Cycle: Meiosis I |
From NCERT
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Given below are two statements: 
Assertion (A): During anaphase-1 of meiosis, non-homologous chromosomes separate.
Reason (R): There is splitting of centromere during anaphase-1.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Cell Cycle: Meiosis I | Cell Cycle: Meiosis II |
 62%
From NCERT
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Unidentical chromatids of a chromosome move to opposite poles during:
1. Anaphase II
2. Telophase
3. Mitotic anaphase
4. Anaphase I
Subtopic:  Cell Cycle: Meiosis II |
 55%
From NCERT
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Consider the given two statements:
Assertion (A): Cell division is a very important process in all living organisms.
Reason (R): During the division of a cell, DNA replication and cell growth also take place.
 
1. (A) is True; (R) is False
2. Both (A) and (R) are True and (R) correctly explains (A)
3. Both (A) and (R) are True but (R) does not correctly explain (A)
4. (A) is False; (R) is True
Subtopic:  Intro to Cell Cycle & Interphase |
From NCERT
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Consider the given two statements:
Assertion (A): Metaphase is the stage at which morphology of chromosomes is most easily studied.
Reason (R): At this stage, metaphase chromosome is made up of two sister chromatids, which are held together by the centromere.
  
1. (A) is True; (R) is False
2. Both (A) and (R) are True and (R) correctly explains (A)
3. Both (A) and (R) are True but (R) does not correctly explain (A)
4. (A) is False; (R) is True
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
From NCERT
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